Atrial and ventricular fetal heart rate patterns in isolated congenital complete heart block detected by magnetocardiography

American Journal of Obstetrics and Gynecology - 1998-07-01Wakai RT, Leuthold A, Martin CB10.1016/S0002-9378(98)70282-0
Atrial and ventricular fetal heart rate tracings from a patient with isolated congenital complete heart block treated with dexamethasone showed a remarkable degree of correlation and greater reactivity for the ventricular than the atrial fetal heart rate. Ventriculophasic sinus arrhythmia was present continually in the atrial fetal heart rate tracings.